Pipe-vise.



G. 0. BERGMAN.

PIPE VISB.

APPLICATION FILED 141111.14, 1911.

Patented Sept. 23, 1913.

2 SHEETS-SHEET 1.

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. 0. BERGMAN.

PIPE VISE.

APPLIOATION FILED 111111.14, 1911.

` 1,073,781. Patented sept. 23, 1913.

2 BHEETS-SHEET 2.

saunier ernten CAIRL OTTO ,BERG-MAF', OF EVANSTON, ILLINOIS, ASSIGNOR. TO MARK MANUFACTUR- ING COMPANY, OF CHICAGO, ILLINOIS, A COPARTNERSHIP COMPOSED OF .AIQXMIDN` K, CLAYTON MARK, AND CYRUS MARK.

PIPE-visie.

To all whom it may concern.' v

Be it known that I, CARL OTTO B eRoMAN, a citizen ofthe United States, residing at Evanston, in the county4 of Cook and State' of Illinois, have invented certain new and useful Improvements in Pipe -Vises, of which the following is a specification.

This invention relates to improvements in pipe vises, and aims to provide a quick and elicient fastening means for attaching such vises to a bench or other support.

Other objects will appear in the specification.

lln the drawings Figure 1 is a front elevation of a pipe vise secured to a supporting means by means of my improved attachment. Fig. 2 is a side elevation of the same. Fig. 3 is a bottom View of the base of my improved vise. Fig. 4 is a perspective of the clamping member. Fig. 5 is a detail sectional View along the line 5, 5 of Fig. 3.

Like y numerals refer to like elements throughout the drawings, in Which l0 designates a common form of pipe vise provided with a base 11 having the usual bolting holes or apertures 12 and 13. In ordinary practice, when it is desired to set up such a vise, bolting members are passed through the holes 12 and 13 and bolted to the supporting bench or board. My invention aims to do away with the necessity of employing bolts and drilling suitable holes, etc., in the supporting means.

14. is the rear base flange of the vise extending a trifle below the bottom of the` base 11 of the vise, as shown in Fig. 2.

15 are corrugations embodied in the side anges of the base of the vise for a purpose to be hereinafter described.

16 designates my improved clamping member in its entirety having a flat top portion 1T adapted when in posit-ion to contact with the base of the vise.

18 is the rear face of the clamping member, and is provided with the side flanges 19 connecting the rear face 18 and top face 17 of the clamping member and forming a strengthening means for the entire clamping member. Projecting out from the lower portion of the clamping member, and formed integrally preferably with the s ide flanges 19 and rear face 18 is a projeetin bottom portion 2l provided with a thread Specication of Letterslatent.

-Application led March 14, 1911.

Patented Sept. 23, 1913.

Serial No. 614,386.

hole 22. Projecting through and coaeting with this threaded hole 22 is a threaded screw 23 carrying at its upper extremity a clamping plate 24 provided with engaging studs 25 on its upper surface. The clamping plate 24 is connected to the upper portion of the threaded screw 23 by a ball and socket engagement, as shown at 26 in Figs. 1 and 2. This enables the clamping plate 24 to engage surfaces not lying in a plane at right angles to the axis of the screw and also prevents the clamping plate, when the studs 25 are in engagement with supporting means, from rotating with the turning of the threaded screw 23.

Pivoted to the lower portion of the screw is an operating handle or lever 27 bifurcated at its upper portion to form the space 28 having shoulders 29 pivotally secured to the lower extremity of the threaded screw 23 at 30. Projecting out from and integrally formed with the upper face of the clamping member are engaging arms 31 bent upwardly at 32 and provided with o'set heads or lugs 33 having the forwardly arranged flat under faces 34, as shown in Fig. 2. These heads 33 preferably are arranged to lie on a line parallel to the rear face of the clamping member, the flat portions 34 being arranged rearwardly of a vertical plane passing through the axis of the threaded screw 23, for a purpose to be described later. y

It is to be noted that the holes 1.3 in the base 11 of the vise are preferably inclined slightly or enlarged at their rear portion, as shown at 13 in Fig. 5 of the drawings.

In the operation of my device, the clamping plate 24 is drawn down to its lower position by means of the rotation of the lever 27 and screw 23. The heads 33 of the engaging arms 31 are inserted in the openingsl 13 in the buse of the vise, the whole clamping member being tilted slightly forward at the moment of insertion of said arms 31 and then tilted back until the face 17 will contact with the base ofthe vise. The rear flange 14 of the. 'vise forming an auxiliary stop or shoulder for engagement with the rear face of the clamping member is shown in Fig. 2 of the drawings. This will bring the flat portions 34 of the engaging heads 33 into contact with the up )er face of the base of the vise. The base of the vise may then iii) be placed on the upper` surface of the bench said apertures and engage the base of said or other supporting means 35 and the clamping plate screwed up into engagement with the under surface of said clamping means, the studs 25 of the clamping plate serving to engage this lower surface upon sufficient rotation of the screw and at the same time the corrugations or teeth l5 are drawn down into engagement with the upper surface-of the supporting means, as shown in Figs. l and 2 of the drawings.

1t will be obvious that upon a comparatively strong force being applied to the up- .ward rotation of the threaded screw 23 a downward pulling force will be exerted on the base of the vise through the medium of the engaging shoulders 3l through the contact of theirfattened faces 34, and at the same time a torque will be exerted owing to the fact that their distance from'the plane of the rear face of the clamping member is less than the distance from the axis of thel threaded screw to the same plane. This will tend to cause a rotation of the clamping member about the contact of the faces 84 with the base 1l of the vise and will serve to firmly contact the up er face 17 of the clamping member with t e base of the vise, the shoulder-fiange 14 of the vise serving as afurther strengthening means and a stop for the rear face of the clamping member. It is to lbe noted that the side flanges 19 of the clamping member project slightly beyond the lrear face i8 and are notched as shown at 20 to permit the engagement of gangs 14 with the rear face 18, as shown in ig. 2.

lit will thus be apparent that l have provideda quick detachableclamping device for the purpose of securing a pipe vise to a supporting means, and also have provided a strong engagement between said clamping means and said vise.

l do not wish to restrict myself to the exv spirit, of my specification and appended claims.

What I claim is:

1. in combination with a pipe vise having ay base provided with apertures, a detachable clamping member, said member havingv forwardly projecting arms at its upper portion, said arms being provided with means adapted to engage the base of said pipe vise through said apertures, said detachable clamping member being further provided with a projecting bottom portion, and a clampingmeans carried thereby.

2. In combination with a pipe vise hav- .ing a base provided with apertures, a de-v tachable clamping member, said member being provided with 'forwardly projecting arms, odset iugs carried by said arms, said lugs being adapted to be inserted. through member being pipe vise, said detachable clamping member being further provided with a forwardly projecting bottom portion, and an adjustable clamping means carried thereby.

3.- ln combination with a pipe vise having a base provided with bolting apertures, a clamping member having an upper face and a rear face, side flanges formed integrally with said top and rear faces, a forwardly projecting bottom portion, said bottom portion being provided with a vertically arranged threaded opening, a threadedgrally formed with side, top and rear faces and bottom portionl and extending from said top faceV to said bottom portion, and forwardly engaging arms extending horizontally loutwardly from said ltop face of said clamping member, being forwardly bent and having odset heads at their upper extremities, said heads being provided with flat. facesv at the under forward portions thereof, said dat faces being adapted to en-` gage with the upper face of the base of said pipe vise upon the insertion of said odset heads of said engaging arms through the bolting apertures in the base of said vise.

l 5. ln combination with a pipe vise provided with a base having bolting apertures and a rear -dange extending downwardly from said base, a clamping member being formed with a top face, a rear wail extending `downwardly therefrom, and a projecting portion extending forwardly fronrthe lower part of said rearwall, engaging arms projecting forwardly from the rear wall and top face of said clamping member, said arms being upwardly bent and formed with odset heads at their upper extremities, said heads being provided on their under forward portions with dat faces adapted to contact with the upper face of the base of said vise when said engaging arms are inserted through the bolting apertures in the base of said pipe vise, the bottom portion o f said clamping lprovided with a threaded aperture, an through and in engagement with said threaded aperture, saidv threaded screw carrying a clamping plate at its upper extremity,- said clamping plate having a ball and a threaded screw passingv socket. connection with the upper extremity of said threaded screw and being provided wlth engaging spurs or studs on lts upper face, said clamping member being adapted to eontaet with the under surface of a supporting means.

6. A clamping member having a top and a rear face, a forwardly extending portion at the lower partof said clamping member, side flanges connecting said top and rear faces and bottom port-ion of said Clampingr member, said bottom portion being provided with a threaded aperture, a threaded screw engaging said thl'eaded aperture and carrying a clamping plate at its upper extremity,

l an operating handle afiixed to the lower e.\- l tremity ot said screw, and engagingiarms ,lprojeeting forwardly from said top and rear faces, laid engaging arms being provided with otfset heads, said screw being ao 20 located that its axis lies in a plane forward from the rear face of said clamping member a greater distance than the offset heads of said engaging arms.

ln testimony whereof, I have subscribed 25 

